kfesolangs is a simple esoteric languages interpreter. Currently it supports only brainfuck but more languages will be added soon.
java -jar kfesolangs.jar <-l language> <source>
Where language is one of these languages:
As source you can enter filename or plain source code of your program:
java -jar kfesolangs.jar -l brainfuck ++++++++++ ++++++++++ ++++++++++ ++++++++++ ++++++++++ ++++++++++ ++++++++++ .
java -jar kfesolangs.jar -l brainfuck program.bf